/Engine/Source/Runtime/Core/Public/Algo/TopologicalSort.h
Sorts the given range in leaf to root order: For every pair of elements (A,B) where SortedIndex(A) < SortedIndex(B), either B is not reachable from A, or A and B are mutually reachable.
namespace Algo { *const RangeType< T > & Algo::GetElementDependencies ( const T & Element ) }